/**
 * ATM取款对象：账户类
 *      属性：卡号、密码、使用状态、类型、余额
 */
public class Card {

    public String cardNo;

    public String password = "123456";

    /**
     * 卡的状态：1-正常；2-冻结
     */
    public int state = 1;

    public String type;

    public double balance;
}
